BCM QRF Quad Rail Handguard for AR-15
Mix and match across the range: 2 items save 5%, 3 save 10%, 4 or more save 15% on your whole basket.
Fits AR-15/M4 upper receivers, including UK straight-pull AR-15 builds. Supplied with a steel barrel nut, which replaces the existing barrel nut. The handguard must clear the gas block along its full length — measure from the receiver face to the front of the gas block before choosing a length.
Not sure it fits your rifle? Ask us before you order
The BCM QRF is a free-float quad rail handguard for AR-15 and M4 rifles, with integral 1913 Picatinny rail machined into all four faces.
Every face is a rail, and the barrel still floats — the QRF is the quad rail for shooters who never wanted to give up rigidity to get mounting space.
The QRF (Quad Rail Free Float) is machined from a single billet of 6061-T6 aluminium with the Picatinny rail cut into the extrusion rather than bolted on, then hard-coat anodised to Mil-A-8625F Type III Class 2. BCM's proprietary profile adds cross-sectional strength where a thin-walled quad rail would flex, and the same steel barrel nut used across the KMR, MCMR and QRF series resists movement as the barrel heats.
Free-float construction is the point. A traditional quad rail that hangs off the front sight base transmits every sling load and bipod load straight into the barrel; the QRF does not touch the barrel at all. For a UK straight-pull AR-15 — a rifle that lives on a bipod, a bag or a barricade and is asked for one accurate shot at a time — that isolation is worth more than any other change to the front end.
Continuous rail at 12, 3, 6 and 9 o'clock means the QRF takes anything with a Picatinny clamp without adapters: lights, lasers, vertical and angled grips, bipods, backup sights, night vision. Rail panels or covers make the unused faces comfortable in the hand.
Fits AR-15/M4 upper receivers, including UK straight-pull AR-15 builds, and is supplied with its own steel barrel nut — so fitting means removing the existing handguard and barrel nut, not sliding a new tube over the old one. The handguard must clear your gas block along its full length, so measure from the receiver face to the front of the block before choosing a length. Shorter tubes suit pistol- and carbine-length gas with a low-profile block; 10" and 12" cover mid-length systems. Bear in mind the QRF is the heaviest of BCM's free-float tubes for a given length — that is the cost of full rail coverage, and if you do not need rail on every face, an M-LOK tube saves several ounces.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Mil-spec upper receivers; steel barrel nut supplied |
| Type | Free-float quad rail handguard, integral 1913 Picatinny on all four faces |
| Material | 6061-T6 aluminium |
| Finish | Hard-coat anodised, Mil-A-8625F Type III Class 2 |
| Weight | 7" 7.6 oz (215 g) · 8" 7.5 oz (215 g) · 9" 9.4 oz (265 g) · 10" 12.3 oz (350 g) · 12" 15.1 oz (430 g); mounting hardware 2.3 oz (65 g) |
| Length | 7.24" (184 mm) · 8.00" (203 mm) · 9.24" (235 mm) · 10.36" (263 mm) · 12.62" (321 mm) |
| Mount interface | Integral 1913 Picatinny rail at 12, 3, 6 and 9 o'clock |
| Brand | Bravo Company USA |
| MPN | BCM-QRF-7-556-BLK · BCM-QRF-8-556-BLK · BCM-QRF-9-556-BLK · BCM-QRF-10-556-BLK · BCM-QRF-12-556-BLK |
Rail everywhere, load nowhere. Order the QRF today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: AR-15 Parts & Accessories, Bipods & Mounts or browse all Bravo Company USA.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Mil-spec upper receivers; steel barrel nut supplied |
| Type | Free-float quad rail handguard, integral 1913 Picatinny on all four faces |
| Material | 6061-T6 aluminium |
| Finish | Hard-coat anodised, Mil-A-8625F Type III Class 2 |
| Weight | 7" 7.6 oz (215 g) · 8" 7.5 oz (215 g) · 9" 9.4 oz (265 g) · 10" 12.3 oz (350 g) · 12" 15.1 oz (430 g); mounting hardware 2.3 oz (65 g) |
| Length | 7.24" (184 mm) · 8.00" (203 mm) · 9.24" (235 mm) · 10.36" (263 mm) · 12.62" (321 mm) |
| Mount interface | Integral 1913 Picatinny rail at 12, 3, 6 and 9 o'clock |
| Brand | Bravo Company USA |
| MPN | BCM-QRF-7-556-BLK · BCM-QRF-8-556-BLK · BCM-QRF-9-556-BLK · BCM-QRF-10-556-BLK · BCM-QRF-12-556-BLK |
| Category | Handguard |
| Barcode | 812526020963 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
The QRF carries fixed 1913 Picatinny rail on all four faces, so anything with a Picatinny clamp mounts anywhere without an adapter. BCM's <a href="/products/bcm-mcmr-m-lok-handguard">MCMR</a> and <a href="/products/bcm-raider-m-lok-handguard">RAIDER</a> use M-LOK slots instead, which are slimmer, lighter and more comfortable to hold, but need a rail section fitting where you want Picatinny. Choose the QRF if you mount a lot and want to move it around; choose M-LOK if you mount little and want a slim tube.
At 12" the handguard alone is 15.1 oz (430 g), against 8.2 oz (230 g) for a 13" MCMR. Mounting hardware adds 2.3 oz (65 g) either way. That weight buys continuous rail on four faces; if you only mount a light and a sling point, an M-LOK tube gives you the same free-float benefit for roughly half the mass.
Yes. The QRF clamps to a steel barrel nut at the receiver and touches nothing forward of it, so sling tension, bipod load and hand pressure never reach the barrel. That is what separates it from a drop-in quad rail that clamps to the front sight base at one end and the delta ring at the other.
Measure from the upper receiver face to the front of the gas block. The tube must clear the block completely. On carbine gas with a low-profile block, 7" to 10" is the usual answer; mid-length gas typically takes 10" or 12". Actual lengths are 7.24", 8.00", 9.24", 10.36" and 12.62", which is slightly longer than the nominal size in each case.
Handguards are sent from the United Kingdom with £5 tracked UK delivery in 7–10 business days, and you will get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or <a href="/pages/contact">contact us</a> and we will help sort it.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
Why Onyx Armaments
